Jalal Ali, W. and Hazim Ismael, Q. 2015. Effect of Friction Stir Welding Parameters on the Joint Efficiency of the Weldments forHigh Strength Aluminum Alloys(2024-T351,7075-T651). Al-Rafidain Engineering Journal (AREJ). 23, 1 (Feb. 2015), 40–50. DOI:https://doi.org/10.33899/rengj.2015.101025.